Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2023 Jeep Grand Cherokee L Laredo, AWDFACTORY OEM SERVICE PROCEDURE
(Passenger Seat Massaging Module Driver (SMMP) - Electrical Diagnostics)
- Diagnostic Code Index
- DTC Troubleshooting
- B1D60-00 Front Seat Identification Circuit
- B1DAA-14 Lumbar Switch - Circuit Short To Ground Or Open
- B1DAA-15 Lumbar Switch - Circuit Short To Battery Or Open
- B1DAA-2A Lumbar Switch - Stuck
- B1DAA-56 Lumbar Switch - Invalid / Incompatible Configuration
- B1EA9-11 Multi Cushion Memory Seat Pump Failure - Circuit Short To Ground
- B1EA9-12 Multi Cushion Memory Seat Pump Failure - Circuit Short To Battery
- B1EA9-13 Multi Cushion Memory Seat Pump Failure - Circuit Open
- B22A9-04 Ecu Internal Performance - System Internal Failures
- B22A9-49 Ecu Internal Performance - Internal Electronic Failure
- U0020-00 Can B Bus Off Performance
- U0140-00 Lost Communication With Body Control Module
- U0199-00 Lost Communication With Driver Door Module
- U0200-00 Lost Communication With Passenger Door Module
- U02B1-00 Lost Communication With Comfort And Convenience Display "A"
- U0422-00 Implausible Data Received From Body Control Module
- U049A-00 Implausible Data Received From Driver Door Module
- U0501-00 Implausible Data Received From Passenger Door Module
- U050A-00 Implausible Data Received From Memory Seat Module
- U0511-00 Implausible Data Received From Passenger Memory Seat Module
- U05B2-00 Invalid Data Received From Comfort And Convenience Display "A"
- U115C-00 Lost Communication With ETM
- U147C-00 Implausible Data Received From ETM
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
Comes to youSame-day available12-month warranty
Get a Free QuoteNo obligation. See pricing before you book.